Advanced HydrationGU Electrolyte Brew is water’s new best friend. The fact is, when you work out you sweat more than just water. So when you drink you gotta have a special Brew with the right amounts of sodium, potassium and carbohydrates to bring your system back into balance. Used consistently, GU Brew will help you perform better and go longer. Simple is BetterNo gimmicky additives here. GU Brew is as simple as they come – with just a handful of key ingredients. Complex and simple carbs in op